Closed-circuit television (CCTV), also known as video surveillance, is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint (P2MP), or mesh wireless links. Though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that may need monitoring such as banks, casinos, airports, military installations, and convenience stores.

A closed circuit television, or CCTV, describes a system that captures and records video on a closed, connected system. This differs from broadcast television in that a CCTV system involves a direct cable or wireless connection between a camera, receiver and recording device, as opposed to a wireless signal publicly broadcast to multiple, properly attuned receivers. CCTV systems are used for surveillance purposes, to increase levels of safety and security.
  • Systems are often implemented because they:-
  • Deter theft.
  • Reduce vandalism.
  • Monitor high risk or secure areas.
  • Ensure quality control.
  • Decrease liabilities (ex. fraudulent injury claims).
  • Increase safety for staff in facilities and parking areas.
  • Provide evidence by recording from the earliest stages of break-in attempts.
  • Confirm remote processes are running properly.

 A mainstream, higher quality camera set-up that connects to a networked server, allowing footage to be recorded and viewed anywhere via the internet.  
 The technology uses a progressive scan while forming a signal and division of brightness and color components of an analog signal: that allows eliminating a blur and blinking, improving a color reproduction..
The IP PTZ camera (network pan, tilt, zoom security camera) with Dual-codec MJPEG/MPEG4 video compression. This powerful yet compact IP camera connects to a wired Ethernet LAN to provide high quality remote video and audio. The pan, tilt, and zoom functions that can be controlled through the Internet using Internet Explorer or by the included wireless remote control. With 300-degree pan and 135-degree tilt, this IP PTZ camera achieves a wide range of view, giving more comprehensive control over the monitored site. The 10x motorized optical zoom module provides excellent depth of field when zoomed in, displaying clear, sharp images of near or distant objects.
Bullet A bullet CCTV camera is a wall-mount or ceiling-mounted unit that is typically designed for indoor use, but can also be fill some outdoor applications. The camera derives its name from its sleek, thin cylindrical shape. Many bullet cameras also tout themselves as being waterproof. The camera is not typically designed to have pan/tilt/zoom control but instead to capture images from a fixed area. The unit is mounted pointing at a particular area.  

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